MuxLab Stereo Audio Balun Manual

MuxLab AV forlænger Stereo Audio Balun

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Side 1/2

Specifications

Environment Line level unbalanced analogue audio

Devices DVD, VCR, camcorders, audio mixers, audio matrix switchers,

audio splitters, audio distribution amplifiers, boosters, satellite

receivers, MPEG players, laptops, stereo audio amplifiers, audio

switchers, integrated TV monitors and other line level audio

equipment

Transmission Transparent to the user.

Bandwidth (3dB point)

(400 O source & 50 kO

receiver)

Up to 1,000 ft (305m): 60Hz - 20 kHz

1,000 ft (305m) to 5,000 ft (1.5 km): 100Hz - 20 kHz

Maximum Input Level 1.1Vp-p

Insertion Loss per Balun

Pair

Less than 1 dB per pair over the frequency range

Common Mode Rejection

(CMMR)

Greater than 60 dB @ 1 kHz

Audio Source Impedance Less than 600 ohms

Audio Receiver Impedance 10 k ohms or greater

Impedance Transformation

Ratio

Single unit: 4:1 (source: line)

Cable – UTP

24 gauge or lower solid copper twisted pair wire impedance: 100

ohms at 1 MHz. Maximum capacitance: 20 pf/foot.

Attenuation: 6.6 dB/1000 ft at 1 MHz

Max. Distance – Cat 5 UTP 5,000 ft (1,525m)

Connectors Two (2) RCA-M 6” cable leads

One (1) RJ45

Pin Configuration (RJ45) Audio 1 (White): pins 1[R] & 2 [T]

Audio 2 (Red): pins 3 [R] & 6 [T]

Temperature Operating: 0º to 55º C. Storage:-20º to 85º C. Humidity: up to

95%

Enclosure ABS. Fire retardant plastic

Dimensions 1.875” x 1.0” diameter plus 6” audio lead

Weight 1.0 oz (28 gms).

Warranty Lifetime

Order Information 500027 Stereo Audio Balun

8114 Trans Canada Hwy, St. Laurent, Quebec, Canada, H4S 1M5

Tel.: (514) 905-0588 Fax: (514) 905-0589

Toll Free (North America): (877) 689-5228

E-mail: videoease@muxlab.com URL: www.muxlab.com

94-000555-A SE-000583-A

Stereo Audio Balun (500027)

Quick Installation Guide

Introduction

The VideoEase Stereo Audio Balun (500027) allows unbalanced line level stereo audio to

be transmitted up to 5,000 ft (1.5km) via unshielded copper twisted pair (UTP) in a

point-to-point connection. The product is designed for mid-range audio applications.

Used in pairs, the Stereo Audio Balun eliminates costly and bulky audio cable, allowing

audio equipment to be connected or moved within a structured cabling environment. The

500027 also works in conjunction with other MuxLab audio-video products including the

500200, 500012, 500001 and 500019 for a more complete cabling solution. Applications

include; audio distribution, custom residential systems and intercom systems.

Installation

To install the Stereo Audio Baluns, perform the following steps:

1. One pair of Stereo Audio Baluns is required for each stereo channel.

2. Identify the pin configuration of the baluns. Two (2) twisted pairs are required

as shown in the following diagram.

Note: The Stereo Audio Balun is phase polarity sensitive. Therefore, in order to

achieve full stereo audio quality, please ensure that the wiring is straight-through and

according to EIA568 (A or B) standard.

3. Verify the colors of the RCA plugs and connect one (1) Stereo Audio Balun to

the left-audio and right-audio RCA connectors of the audio source.

4. Verify the colors of the RCA plugs and connect a second Stereo Audio Balun to

the left-audio and right-audio RCA connectors of the audio receiver at the

remote end.

5. Complete the connection between the two (2) baluns, using standard UTP

cable, connector blocks and appropriate modular RJ45 outlets.

6. Power-on the audio equipment and check the audio quality. The audio should

be clear within the maximum specified distances. The following diagram shows

a typical configuration.

Troubleshooting

The following table describes some of the symptoms, probable causes and possible solutions

in respect to the installation of the Stereo Audio Balun. If you still cannot diagnose the

problem, please call MuxLab Customer Technical Support at 877-689-5228 (toll-free in North

America) or 514-905-0588 (International).

Symptom Probable Causes Possible Solutions

Poor audio

quality

EMI interference. Check that wiring is not too close to

transformers and ballasts.

Split pair Ensure that the UTP pairs are not

split and that each pair of wires is

twisted.

No audio No power Check your audio system for power.

Open circuit Check wiring to ensure continuity

Defective balun Change Stereo Audio Baluns for

another pair.

Audio phase

cancellation

Reversed wires Check for straight-through wiring.

Audio weak Distance specifications

exceeded

Check DC loop resistance and verify

if distance spec is exceeded. Reduce

cable length or eliminate high-loss

components.

Produkt Specifikationer

Mærke:	MuxLab
Kategori:	AV forlænger
Model:	Stereo Audio Balun

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